1. Rear Facing Harness: 4-40 lb (1.8-18 kg). 2. Forward-Facing Harness: 22-65 lb (10-30 kg). 3. Highback Booster: 40-100 lb (18-45 kg). 4. Backless Booster: 40-120 lb (18-54 kg). America's no. 1 selling car seat. Simply safe adjust harness system. 10-position adjustable headrest. 6-position recline. Inright latch. ProtectPlus Engineered: Helps to protect your little one in frontal, side, read and rollover crashes. Frontal-Impact Tested: Meets or exceeds the child restraint criteria for a frontal crash test under the US FMVSS 213. Side-Impact Tested: Side-impact tested for occupant retention with the built-in 5-point harness system and in highback belt-positioning modes. 2X Car Seat Standard: Tested using approximately twice the impact force required by the US FMVSS 213 car seat safety standard. Rear-Impact Tested: Rear-impact tested based on the European read-impact crash pulse. Rollsafe Testing Standard: Tested to Graco's Rollsafe testing in standard based on the European rollover testing procedure. Exreme Car Interior Temperatures: Tested for structural integrity in extreme hot and cold temperatures. Certification is made by the manufacturer that materials in this article are described in accordance with law. Aircraft Approved: Certified for use in an aircraft, in rear-facing and forward-facing harness modes. gracobaby.com. We would love to hear from you. Consumer service: 1-800-345-4109. Made in China.